Kawasaki FH680V is hard to start

bdom

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As well as taking a lot of cranking to start, the engine is very slow to turn when you first turn the key. Yes, that could be a battery/starter motor/solenoid issue. We shall see.
 

gregjo1948

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Thank you for your interest in my problem. The mower is hard to start, meaning it takes a lot of cranking. Once started it runs great. Better after I adjusted the valves. I think I have them right. I mowed for two hours today. The jury's still out on the problem. But here is the part number of the spring that I think is broken. Kawasaki 921457001 SPRING . What do you think? This spring is part of the mechanism that opens the exhaust valve at low RPMs to allow for easier starting.
I don't remember for certain but, I think that spring has to do with the govenor. Have you check your fuel pump? There is a short vacuum hose that runs from one of the cylinder heads that may be cracked or loose etc. At cranking speed, the lose of vacuum will create a shortage of fuel and take longer to start. Once it does start, the higher rpms will draw more fuel so it will run ok. gregjo1948
 

bdom

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There is a spring on the governor arm which is outside the engine. The spring I am talking about is in the crankcase. I have disconnected the outflow hose to the fuel pump and cranked the engine and gas is pumped right out. The fuel pump is good.
 

bdom

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The jury is in. The machine went into the shop. The experts found a working automatic compression release and a weak starter motor. The starter motor was replaced and the mower was fixed. Thanks to all who contributed.
Bill
 
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